Spears
PVC DWV Increaser-Reducer Coupling (H x H)
- SKU:
- P102
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
PVC DWV Increaser-Reducer Coupling (H x H)
PVC DWV Increaser-Reducer Coupling (H x H) provides an inline transition between different nominal PVC drain, waste, and vent pipe sizes. The fitting uses hub connections at both ends to receive appropriately sized compatible PVC DWV pipe.
The H x H increaser-reducer coupling configuration provides a compact size transition within a straight piping run. Selection should account for both nominal sizes, hub compatibility, adjoining pipe, joining requirements, piping alignment, support, and available installation clearance.
Product Highlights
- PVC construction
- DWV fitting design
- Coupling configuration
- Hub x hub connections
- Inline size transition
- Connects different nominal pipe sizes
- Receives compatible PVC DWV pipe
- Provides an increaser or reducer transition within a straight piping run
Technical Specifications
| Product Type | Increaser-Reducer Coupling |
|---|---|
| Material | PVC |
| System Type | DWV |
| Connection | Hub x Hub (H x H) |
| Connection Count | Two |
| Fitting Configuration | Inline Coupling |
| Size Configuration | Increaser / Reducer |
| Hub Interface | Compatible PVC DWV Pipe |
| Connection Style | Hub x Hub |
| Joining Method | Compatible PVC DWV Joining Procedure |
| Piping Configuration | Straight Inline Size Transition |
| Primary Function | Connect Different Nominal PVC DWV Pipe Sizes Within an Inline Piping Run |
Increaser-Reducer Design
The increaser-reducer coupling configuration provides a transition between two different nominal pipe sizes within a straight piping run. Depending on piping direction and application, the fitting can function as either an increaser or reducer.
Both nominal sizes should be confirmed before permanent joining so each hub corresponds with the intended adjoining pipe. Planning the installation helps coordinate pipe alignment, nearby fittings, support, and available working clearance.
Hub Connections
The hub connections receive appropriately sized compatible PVC DWV pipe at both ends of the coupling. Because the fitting connects different nominal sizes, each hub should be matched carefully to the correct adjoining pipe.
The mating pipe and hub surfaces should be prepared using the appropriate PVC DWV joining procedure. Proper insertion, compatible joining materials, and careful alignment help establish the transition without unnecessary stress on the fitting.
PVC DWV Integration
The PVC DWV construction allows the increaser-reducer coupling to integrate into compatible drain, waste, and vent piping arrangements requiring an inline size transition. Matching both nominal sizes and hub interfaces to the adjoining PVC pipe helps maintain the intended piping configuration.
Application suitability should be evaluated using the requirements of the complete DWV system. Adjoining materials, connection compatibility, joining materials, piping support, slope where applicable, and local installation requirements should all be considered during fitting selection.
Inline Size Transition
A PVC DWV Increaser-Reducer Coupling provides a compact method of transitioning between different compatible pipe sizes without changing the general direction of the piping run. The H x H arrangement accepts compatible PVC DWV pipe at both ends.
Installation planning should consider both nominal sizes, pipe alignment, nearby fittings, available clearance, and piping support. Connected piping should align naturally without forcing the coupling to correct significant offsets.
Installation & Selection Considerations
- Confirm both nominal sizes.
- Verify the H x H arrangement.
- Check PVC DWV compatibility.
- Confirm the required size transition.
- Align adjoining pipe before assembly.
Our PVC fitting specialists can help review both nominal sizes, DWV requirements, H x H configuration, adjoining PVC pipe, required size transition, joining requirements, piping alignment, support requirements, and available installation clearance before you order.
Frequently Asked Questions
What is a PVC DWV Increaser-Reducer Coupling used for?
It provides an inline transition between different nominal PVC DWV pipe sizes.
What does H x H mean?
It identifies hub connections at both ends of the fitting.
Why is it called an increaser-reducer?
The fitting can provide either an increase or reduction in nominal pipe size depending on the piping direction and application.
What connects to the hub openings?
The hub openings receive appropriately sized compatible PVC DWV pipe.
Does this fitting change piping direction?
No. It is intended primarily as an inline size transition within a compatible piping run.
What should I confirm before ordering?
Confirm both nominal sizes, H x H arrangement, PVC DWV compatibility, and required size transition.
Important Ordering & Installation Notes
- Inspect both hubs before use.
- Confirm both nominal sizes.
- Verify the H x H arrangement.
- Prepare adjoining pipe correctly.
- Confirm alignment before final assembly.
